_Performance Testing PASS_

Branch: dpdk-next-net-mlx

65f86d6332812225e1c84d7d89fe4b4fa19cb8eb --> performance testing pass

Test environment and result as below:

Ubuntu 18.04
Kernel: 4.15.0-generic
Compiler: gcc 7.4
NIC: Mellanox ConnectX-5 100000 Mbps
Target: x86_64-native-linuxapp-gcc
Fail/Total: 0/6

Detail performance results: 
+------------+---------+-------------------------------------+
| frame_size | txd/rxd | throughput difference from expected |
+============+=========+=====================================+
| 64         | 256     | -0.12318%                           |
+------------+---------+-------------------------------------+
| 128        | 256     | -0.13832%                           |
+------------+---------+-------------------------------------+
| 256        | 256     | -0.57993%                           |
+------------+---------+-------------------------------------+
| 512        | 256     | 0.40513%                            |
+------------+---------+-------------------------------------+
| 1024       | 256     | -0.85987%                           |
+------------+---------+-------------------------------------+
| 1518       | 256     | 0.40104%                            |
+------------+---------+-------------------------------------+

Ubuntu 18.04
Kernel: 4.15.0-generic
Compiler: gcc 7.4
NIC: Mellanox ConnectX-4 Lx 40000 Mbps
Target: x86_64-native-linuxapp-gcc
Fail/Total: 0/6

Detail performance results: 
+------------+---------+-------------------------------------+
| frame_size | txd/rxd | throughput difference from expected |
+============+=========+=====================================+
| 64         | 256     | 0.35166%                            |
+------------+---------+-------------------------------------+
| 128        | 256     | -0.92964%                           |
+------------+---------+-------------------------------------+
| 256        | 256     | 0.0146%                             |
+------------+---------+-------------------------------------+
| 512        | 256     | 0.02662%                            |
+------------+---------+-------------------------------------+
| 1024       | 256     | -0.19806%                           |
+------------+---------+-------------------------------------+
| 1518       | 256     | 0.01538%                            |
+------------+---------+-------------------------------------+

Ubuntu 18.04
Kernel: 4.15.0-generic
Compiler: gcc 7.4
NIC: Mellanox ConnectX-4 Lx 25000 Mbps
Target: x86_64-native-linuxapp-gcc
Fail/Total: 0/6

Detail performance results: 
+------------+---------+-------------------------------------+
| frame_size | txd/rxd | throughput difference from expected |
+============+=========+=====================================+
| 64         | 256     | -0.1392%                            |
+------------+---------+-------------------------------------+
| 128        | 256     | -0.21399%                           |
+------------+---------+-------------------------------------+
| 256        | 256     | 0.6053%                             |
+------------+---------+-------------------------------------+
| 512        | 256     | -0.29%                              |
+------------+---------+-------------------------------------+
| 1024       | 256     | -0.08358%                           |
+------------+---------+-------------------------------------+
| 1518       | 256     | -0.0493%                            |
+------------+---------+-------------------------------------+

To view detailed results, visit:
https://lab.dpdk.org/results/dashboard/tarballs/14126/

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